float4x4 matrix_mvp;
float4x4 matrix_normal;

void main (float4 vertex : POSITION, out float4 overtex : POSITION, float3 normal : NORMAL, out float3 onormal : TEXCOORD0)
{
    overtex = mul (matrix_mvp, vertex);
    //onormal = mul ((float3x3)matrix_normal, normal);
}